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On Oct 20, 2007, at 12:03 AM, ekameleon wrote:
Hello :)
See the documentation of the Array class and the splice method :
splice(startIndex:Number <00002026.html#419506>,
[deleteCount:Number<00002026.html#419506>],
[value:Object <00002035.html#421878>])
The null value don't remove an item in the Array instances :) clean
only the
value in the case :)
If you use a property in an object use 'undefined' or 'delete' :
var o = {} ;
o.prop1 = 1 ;
o.prop2 = 2 ;
trace(o) ;
for (var prop in o )
{
trace( prop + " : " + o[prop] ) ;
}
trace("--- remove prop1") ;
trace( "remove prop1 : " + delete o.prop1 ) ;
for (var prop in o )
{
trace( prop + " : " + o[prop] ) ;
}
... If you want keep the property but this property not must be
enumerable
in the for..in loop, use ASSetPropFlags :
var o = {} ;
o.prop1 = 1 ;
o.prop2 = 2 ;
trace(o) ;
ASSetPropFlags(o, ["prop1"] , 1 ) ;
// with the for..in
for (var prop in o )
{
trace( prop + " : " + o[prop] ) ;
}
// but the property exist :
trace(o.prop1 ) ;
EKA+ :)
2007/10/19, Andrew Sinning <[EMAIL PROTECTED]>:
A question in my sent box from when the list went down:
I like to use the Object class as an index, but there doesn't
appear to
be a way to completely remove a property from an object. I can
set the
value to null, but I'd really like to be able to remove the property
completely. Why? Because if I want to do a reverse lookup, then I
have
to iterate through all of the properties, but having to iterate
through
the nulled values seems inefficient.
I can do this with another class, something that includes an Array to
keep track of current properties and an Object for the index, but I'm
wondering if I'm overlooking something. Often I find that I am.
Speaking of Arrays, it's a bit frustrating that there's no easy
way to
remove an item from an array either. Currently I use:
iterate through the array to find the index of the needle
splice the Array at the index
Is there a faster way to remove an item from an array?
Thanks!
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